单词：strontium pyroarsenite
焦亚砷酸锶
单词：strontium pyroarsenite 相关文章
Soon after taking up his position, Davy began to bang out new elements one after anotherpotassium, sodium,magnesium, calcium, strontium, and aluminum or aluminium, depending on which branch of English you favor. 上任不久，戴维开始宣布发现一
发表于:2019-01-29 / 阅读(158) / 评论(0)
万物简史
万物简史
Dialogue 1 Mark: Hey, Jingjing. You wanna come bungee jumping with me and my friends? We're heading out this afternoon. It's gonna be so much fun! 马克：嘿，京晶。你想加入我和我的朋友们去蹦极吗？我们今天下午出发，肯定
发表于:2019-03-06 / 阅读(224) / 评论(0)
英语PK台
英语PK台